Trump argued the U.S. Constitution's supremacy clause protects presidents from civil litigation in state courts.
"We are grateful for the opportunity to prove that that defendant falsely branded Ms. Zervos a phoney for telling the truth about his unwanted sexual groping", she said in a statement.
"No one is above the law", Justice Schecter said.
This means that Summer Zervos' complaint will now move forward.
Mariann Wang of Cuti Hecker Wang, who represents Zervos, said of the judge's decision that "rule of law and sound reason have prevailed today".
"It is settled that the President of the United States has no immunity and is "subject to the laws" for purely private acts", Schecter added.
First Lawsuit Filed In FIU Bridge Collapse
A crane is seen near a newly installed pedestrian bridge, that collapsed, over a six-lane highway in Miami , March 15, 2018. The transcription is below and audio is available HERE: "Hey Tom, this is Denney Pate with FIGG bridge engineers .
Zervos then sued Trump, arguing that Trump painting her as a liar harmed her business and her personal reputation. The judge cites Paula Jones' case against Bill Clinton as precedent. Zervos has claimed that in 2007, while in Trump's NY office, he kissed her on the lips twice, making her "uncomfortable, nervous, and embarrassed".
Also on Tuesday, a NY court ruled that Zervos, the former Apprentice contestant, would be allowed to move forward with a defamation suit against the president.
The lawsuit was the second time this month that a woman challenged legal arrangements to prevent discussions about affairs women said they had with Trump.
With reshuffles, insecurity, and infighting, President Trump's legal team is starting to resemble his White House team, insiders say.
The suit was filed in a state court in Manhattan past year by Summer Zervos, a contender on "The Apprentice" in 2005 who alleges Trump ambushed her on more than one occasion starting in 2007, kissing her on the mouth, touching her breast and pressing his genitals against her.
Trump also faces a lawsuit by porn actress Stormy Daniels to end an agreement under which she was paid $US130,000 in what she called hush money to keep quiet about an affair she claimed to have had with Trump beginning in 2006.
Zervos first made public her claims against Trump at an October 2016 news conference as one of a parade of women who accused him of misconduct after the release of an "Access Hollywood" recording capturing the future president boasting in graphic language about groping women. "Just as he has tried to do with Stormy Daniels and Karen McDougal, Trump has tried to threaten and silence these women", Chaudhary stated.